Sinofuse (Zhongrong) Products

Sinofuse specializes in high-voltage DC fuses for new energy applications: 1) EV Fuses - for electric vehicle battery packs, motors, and charging systems (500V-1000VDC); 2) Energy Storage Fuses - for battery energy storage systems and inverters (500V-1500VDC); 3) Photovoltaic Fuses - for solar inverters and combiner boxes (1000V-1500VDC); 4) Industrial Fuses - for general industrial power distribution and motor protection. All products feature high breaking capacity (up to 100kA) and comply with international standards including UL, IEC, and automotive requirements.

Browse our product categories to find the right fuse for your EV, energy storage, or solar application.

Sinofuse offers comprehensive voltage ratings for DC applications: 1) 500VDC - for low-voltage EV and energy storage systems; 2) 750VDC - common for commercial EV and industrial applications; 3) 1000VDC - standard for many EV battery packs and solar systems; 4) 1500VDC - for utility-scale solar and large energy storage systems. Higher voltage ratings are available for specialized applications. All voltage ratings are DC working voltage with safety margins for transient conditions.

Select voltage rating based on your system maximum DC voltage with appropriate safety margin. Contact our FAE for guidance.

High-voltage DC fuse current selection: 1) Calculate maximum continuous current under worst-case conditions; 2) Apply 1.25x to 1.5x safety factor for steady loads; 3) Consider peak currents for EV acceleration or inverter startup; 4) Account for temperature derating - typically 20% at high ambient temperatures; 5) Verify coordination with other protection devices. Example: 200A continuous load requires 250A to 300A fuse rating. Always verify the selected fuse can protect against fault conditions and coordinate properly with system protection.

Contact our FAE with your system parameters for current rating recommendations and coordination studies.

Sinofuse products hold comprehensive international certifications: 1) UL Recognition - for North American market compliance; 2) cULus - for Canada and US markets; 3) VDE - for European market; 4) TUV - German technical certification; 5) CCC - China Compulsory Certification; 6) IATF 16949 - automotive quality management; 7) ISO 9001 - quality management system; 8) ISO 14001 - environmental management. EV-specific products comply with UL 248-13 and IEC 60269-7 standards for automotive fuses.

Verify required certifications for your target market. Contact our sales team for certification documentation.

Lead times vary by product type: 1) Standard EV fuses - 6-8 weeks; 2) Energy storage fuses - 8-10 weeks; 3) Photovoltaic fuses - 6-8 weeks; 4) Industrial fuses - 4-6 weeks; 5) Custom products - 10-12 weeks. BeiLuo maintains strategic inventory of popular ratings for faster delivery. Large volume orders may require production scheduling. Contact our sales team for current lead times and stock availability.

Contact our sales team for current stock status and lead times. Consider forecast agreements for high-volume requirements.